Answer:
A) A and B are supplementary
Step-by-step explanation:
we know that
For any inscribed  quadrilateral in the circle , opposite angles will be supplementary
so
In this problem
Angle A and Angle B are supplementary angles

Angle B and Angle D are supplementary angles

therefore
<u><em>The sentences that are true </em></u>
A) A and B are supplementary